Hello, I am unable to understand the use of these statements in the program, I have read about POSIX in the CPAN but still things are not clear to me.
use POSIX ":sys_wait_h"; #What sys_wait_h does? waitpid($_,&WNOHANG) # what is WNOHANG? my $message = $object -> receive($id,$length,"IPC_NOWAIT"); #what is the functionality of receive function i did not found any documentation about this function. At last what IPC_NOWAIT does in receive function. Regards and thanks for the replies in advance. RAHEEL
